Understanding factors influencing substance use in people with recent onset psychosis: A qualitative study.

This qualitative study identifies factors influencing the use of substances in young people with recent onset psychosis. A purposive sample of 19 people aged between 16 and 35 years from an Early Intervention Service in the English National Health Service (NHS) was interviewed using a semi-structured guide. All had experienced a psychotic episode and were within 3 years of first contact with the service.